4 files changed, 35 insertions, 60 deletions

diff --git a/mailnews/local/src/nsLocalMailFolder.cpp b/mailnews/local/src/nsLocalMailFolder.cpp
index 00244ca87..78991ebfd 100644
--- a/mailnews/local/src/nsLocalMailFolder.cpp
+++ b/mailnews/local/src/nsLocalMailFolder.cpp
@@ -653,8 +653,6 @@ NS_IMETHODIMP nsMsgLocalMailFolder::EmptyTrash(nsIMsgWindow *msgWindow,
   if (NS_SUCCEEDED(rv))
   {
     uint32_t flags;
-    nsCString trashUri;
-    trashFolder->GetURI(trashUri);
     trashFolder->GetFlags(&flags);
     int32_t totalMessages = 0;
     rv = trashFolder->GetTotalMessages(true, &totalMessages);
@@ -750,43 +748,6 @@ nsresult nsMsgLocalMailFolder::IsChildOfTrash(bool *result)
   return rv;
 }
 
-NS_IMETHODIMP nsMsgLocalMailFolder::Delete()
-{
-  nsresult rv;
-  nsCOMPtr<nsIMsgDBService> msgDBService = do_GetService(NS_MSGDB_SERVICE_CONTRACTID, &rv);
-  NS_ENSURE_SUCCESS(rv, rv);
-  msgDBService->CachedDBForFolder(this, getter_AddRefs(mDatabase));
-  if (mDatabase)
-  {
-    mDatabase->ForceClosed();
-    mDatabase = nullptr;
-  }
-
-  nsCOMPtr<nsIMsgIncomingServer> server;
-  rv = GetServer(getter_AddRefs(server));
-  NS_ENSURE_SUCCESS(rv, rv);
-
-  nsCOMPtr<nsIMsgPluggableStore> msgStore;
-
-  rv = server->GetMsgStore(getter_AddRefs(msgStore));
-  NS_ENSURE_SUCCESS(rv, rv);
-
-  nsCOMPtr <nsIFile> summaryFile;
-  rv = GetSummaryFile(getter_AddRefs(summaryFile));
-  NS_ENSURE_SUCCESS(rv, rv);
-
-  //Clean up .sbd folder if it exists.
-  // Remove summary file.
-  rv = summaryFile->Remove(false);
-  NS_WARNING_ASSERTION(NS_SUCCEEDED(rv), "Could not delete msg summary file");
-
-  rv = msgStore->DeleteFolder(this);
-  if (rv == NS_ERROR_FILE_NOT_FOUND ||
-      rv == NS_ERROR_FILE_TARGET_DOES_NOT_EXIST)
-    rv = NS_OK; // virtual folders do not have a msgStore file
-  return rv;
-}
-
 NS_IMETHODIMP nsMsgLocalMailFolder::DeleteSubFolders(nsIArray *folders, nsIMsgWindow *msgWindow)
 {
   nsresult rv;
diff --git a/mailnews/local/src/nsLocalMailFolder.h b/mailnews/local/src/nsLocalMailFolder.h
index b2503a157..1ed964b16 100644
--- a/mailnews/local/src/nsLocalMailFolder.h
+++ b/mailnews/local/src/nsLocalMailFolder.h
@@ -120,7 +120,6 @@ public:
   NS_IMETHOD Compact(nsIUrlListener *aListener, nsIMsgWindow *aMsgWindow) override;
   NS_IMETHOD CompactAll(nsIUrlListener *aListener, nsIMsgWindow *aMsgWindow, bool aCompactOfflineAlso) override;
   NS_IMETHOD EmptyTrash(nsIMsgWindow *msgWindow, nsIUrlListener *aListener) override;
-  NS_IMETHOD Delete () override;
   NS_IMETHOD DeleteSubFolders(nsIArray *folders, nsIMsgWindow *msgWindow) override;
   NS_IMETHOD CreateStorageIfMissing(nsIUrlListener* urlListener) override;
   NS_IMETHOD Rename (const nsAString& aNewName, nsIMsgWindow *msgWindow) override;
diff --git a/mailnews/local/src/nsMsgBrkMBoxStore.cpp b/mailnews/local/src/nsMsgBrkMBoxStore.cpp
index 31836dd3c..1ab464385 100644
--- a/mailnews/local/src/nsMsgBrkMBoxStore.cpp
+++ b/mailnews/local/src/nsMsgBrkMBoxStore.cpp
@@ -300,26 +300,30 @@ NS_IMETHODIMP nsMsgBrkMBoxStore::SetSummaryFileValid(nsIMsgFolder *aFolder,
 NS_IMETHODIMP nsMsgBrkMBoxStore::DeleteFolder(nsIMsgFolder *aFolder)
 {
   NS_ENSURE_ARG_POINTER(aFolder);
-  //Delete mailbox
+  bool exists;
+
+  // Delete mbox file.
   nsCOMPtr<nsIFile> pathFile;
   nsresult rv = aFolder->GetFilePath(getter_AddRefs(pathFile));
   NS_ENSURE_SUCCESS(rv, rv);
 
-  pathFile->Remove(false);
+  exists = false;
+  pathFile->Exists(&exists);
+  if (exists) {
+    rv = pathFile->Remove(false);
+    NS_ENSURE_SUCCESS(rv, rv);
+  }
 
-  bool isDirectory = false;
-  pathFile->IsDirectory(&isDirectory);
-  if (!isDirectory)
-  {
-    nsAutoString leafName;
-    pathFile->GetLeafName(leafName);
-    leafName.AppendLiteral(FOLDER_SUFFIX);
-    pathFile->SetLeafName(leafName);
+  // Delete any subfolders (.sbd-suffixed directories).
+  AddDirectorySeparator(pathFile);
+  exists = false;
+  pathFile->Exists(&exists);
+  if (exists) {
+    rv = pathFile->Remove(true);
+    NS_ENSURE_SUCCESS(rv, rv);
   }
-  isDirectory = false;
-  pathFile->IsDirectory(&isDirectory);
-  //If this is a directory, then remove it.
-  return isDirectory ? pathFile->Remove(true) : NS_OK;
+
+  return NS_OK;
 }
 
 NS_IMETHODIMP nsMsgBrkMBoxStore::RenameFolder(nsIMsgFolder *aFolder,
diff --git a/mailnews/local/src/nsMsgMaildirStore.cpp b/mailnews/local/src/nsMsgMaildirStore.cpp
index 7a4633367..993abbad5 100644
--- a/mailnews/local/src/nsMsgMaildirStore.cpp
+++ b/mailnews/local/src/nsMsgMaildirStore.cpp
@@ -323,19 +323,30 @@ NS_IMETHODIMP nsMsgMaildirStore::SetSummaryFileValid(nsIMsgFolder *aFolder,
 NS_IMETHODIMP nsMsgMaildirStore::DeleteFolder(nsIMsgFolder *aFolder)
 {
   NS_ENSURE_ARG_POINTER(aFolder);
+  bool exists;
 
-  // Delete Maildir structure
+  // Delete the Maildir itself.
   nsCOMPtr<nsIFile> pathFile;
   nsresult rv = aFolder->GetFilePath(getter_AddRefs(pathFile));
   NS_ENSURE_SUCCESS(rv, rv);
 
-  rv = pathFile->Remove(true); // recursive
+  exists = false;
+  pathFile->Exists(&exists);
+  if (exists) {
+    rv = pathFile->Remove(true);
+    NS_ENSURE_SUCCESS(rv, rv);
+  }
+
+  // Delete any subfolders (.sbd-suffixed directories).
   AddDirectorySeparator(pathFile);
-  bool exists;
+  exists = false;
   pathFile->Exists(&exists);
-  if (exists)
-    pathFile->Remove(true);
-  return rv;
+  if (exists) {
+    rv = pathFile->Remove(true);
+    NS_ENSURE_SUCCESS(rv, rv);
+  }
+
+  return NS_OK;
 }
 
 NS_IMETHODIMP nsMsgMaildirStore::RenameFolder(nsIMsgFolder *aFolder,